Fish Passage Site 10302213

Coordinates (dec. deg.): 58.37858°, -134.71495°
Legal Description: C040S065E29
Region: Southeast
Road Name: Glacier Highway

Datum: NAD83
Quad Name / ITM: Juneau B-3
AWC Stream #:
Stream Name: Auke Bay tributary

Elevation:

Site Comments: This site is on Point Louisa Road in the Auke Bay Recreational Area. There is another culvert on this stream about 200 feet upstream from this site that runs under the Glacier Highway

Multiple surveys have been conducted at this site — click on the drop down
arrow to the right of the survey date below to choose a different report for this site.

Survey SEA11-ABR01

Project Supervisor: Gillian O'Doherty, Alaska Department of Fish and Game — Anchorage, AK
Observers: Jason Olds, Charmagne Gutierrez

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Outfall height red
  3. Constriction ratio gray

Comments: Two fish in trap B when removed; quality habitat. ~20' freefall over rip-rap/cascade 200' upstream of iinlet nvert from upstream pipe under Glacier Hwy. Small but decent habitat upstream of Glacier Hwy.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Red
 
Length(ft): 103.5
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.33
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 0.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):5.0 5.0
Height(ft):5.0 5.0
Apron Length(ft):0.0 0.0
Water Depth(ft): 0.11
Rustline Height(ft):1.0
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.34
Outfall Type: Cascade Over Rip-Rap
Constriction Ratio: 0.62
Culvert Gradient: 10.20%
Max Slope:
Max Slope Length:
 

Comments: Culvert gradient red. Will likely not pass fish.
  Culvert Observations:
  1. Culvert gradient red
  2. Outfall height red
  3. Constriction ratio gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:BoulderCobble
Subdominant:CobbleGravel
Stream Slope(deg.):8.9
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 23.0 11.70
Upstream ordinary high water 46.0 8.20
Upstream ordinary high water 66.0 4.40

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 123.38
D/S Grade Ctrl (Thalweg) 0.00 92.73
D/S Water Surface Elev 0.00 92.96
D/S Tailcrest or 1st Thalweg 18.00 94.47
D/S Water Surface Elev 18.00 94.68
Outlet Pool Water Elev 21.00 94.65
Max Pool Depth 21.00 93.85
Outlet Invert (On Metal) 28.00 94.88
D/S Water Surface Elev 28.00 94.99
Outlet Culvert Top 28.00 100.00
Inlet Culvert Invert (On metal) 131.50 105.44
U/S Water Surface Elev 131.50 105.54
Inlet Culvert Top 131.50 110.42
U/S Headwater (1st resting pool, bottom of riffle) 132.00 105.54

Notes:

  1. River distance is measured continuously throughout the survey reach along the thalweg of the stream.
  2. Measured from each end of the crossing along the thalweg of the stream.

Fish Sampling Efforts

Gear Type: Minnow Trap (A) Trap Duration(h): 3.0
Channel Type: Main Channel (>50% of water flow)
 
Gear Type: Minnow Trap (B) Trap Duration(h): 3.0
Channel Type: Main Channel (>50% of water flow)
 
Gear Type: (C)

Fish Observations

Species: Dolly Varden Life History: Unknown
Total Fish Observed: 2 Fish Measured: 2 Fork Lengths (mm) Min: 85 Max: 153 Mean: 119
Collected/Observed by Gear Type: Upstream Minnow Trap (2)  

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